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o you know about the poison of fish? Why some fish can poison you, and how to avoid the danger
Fish has always been an important source of protein in the human diet, but while enjoying the delicious food, we must also be aware of the potential toxicity of some fish. These toxins have various sources and effects, and improper consumption can lead to food poisoning or even life-threatening conditions. This article takes a closer look at the sources of fish toxicity and how to eat fish safely.
Sources of fish toxins
Toxins in fish mainly come from natural biological toxins and environmental pollution. Some fish, especially certain species like pufferfish, have natural toxins in their bodies that they use as a way of protecting themselves from predators.
For example, the tetrahydrocannabinol toxin in pufferfish can cause fatal food poisoning if not properly handled by professional chefs.
Other fish are top predators in the food chain and toxins accumulate through biomagnification as they move up the food chain. Among them, mercury is a common heavy metal pollutant that mainly comes from industrial emissions and water pollution, and is usually found in high concentrations in large fish such as swordfish, sharks and bigeye tuna.
Main types of fish poisoning
The main types of fish poisoning include poisoning caused by biotoxins, such as Pomacea canaliculata toxins, botulism, and poisoning caused by pollutants, such as heavy metal poisoning. The following are some common fish toxins:
- Tetrodotoxin: It is found in the internal organs of some fish, such as pufferfish, and must be prepared by professionally trained chefs.
- Saxitoxin: Mainly from eating contaminated shellfish, it can cause severe neurotoxicity.
- Mercury poisoning: Mainly from consuming high-mercury fish, which can affect the development of the nervous system.
How to avoid fish poisoning
To enjoy fish safely, consumers need to take certain precautions. Here are some helpful suggestions:
- Know and choose fish: Choose fish from reliable sources and avoid eating fish high in mercury, especially if you are pregnant or have children.
- Thoroughly salt or freeze: For fish that will be eaten raw, such as sashimi, it is important to freeze it properly to kill any parasites that may be present.
- Follow local guidance: Pay attention to local fishing safety assessments to learn about the safety of fish in local waters.
While fish provide a wealth of nutrients and delicious flavor, they also carry many risks. Proper knowledge and preparation can help you avoid these dangers and ensure safe consumption. So, are you ready to learn more about the origin and safety of the fish on your table?
